REHN AND HEBARD 



21 



C e r c i elongate, 

 thickened, taper- 

 ing, tooth proxi- 

 mad and directed 

 distinctly pro.xi- 

 mad. 



Cerci very elong- 

 ate, incrassate, 

 tapering, apex 

 slightly incurved, 

 tooth decidedly 

 proximad and di- 

 rected distinctly 

 proximad. 



Cerci elongate, 

 thickened, taper- 

 ing, tooth proxi- 

 mad and directed 

 nearly at a right 

 angle or decidedly 

 curved and ex- 

 tending proximad 

 in dii-ection. 



Cerci much as in 

 bradleyi of Group 

 G but with distal 

 portion heavier 

 and thicker. 



Cerci with distal 

 extremity taper- 

 ing, tooth nearly 

 median, not 

 heavy, directed 

 weakly proximad. 



Group E. (concinnum, fidicinium) 

 Ovipositor moder- Stridulating field 

 ately falcate, of normal, 

 variable length. 



Group F. {militare) 



Ovipositor Stridulating field 



straight, subequal normal, 

 in depth, elongate. 



Lateral lobes with 

 humeral sinus in- 

 dicated quite dis- 

 tinctly and rather 

 broadly. 



Lateral lobes with 

 h u m e r a 1 sinus 

 very shallowly in- 

 dicated. 



Stenorhoptrum new subgenus 

 Group G. {volantum, bradleyi) 



Ovipositor with 

 ventral margin 

 straight proximad 

 or gently arcuate, 

 dorsal margin 

 straight. 



Stridulating field 

 of male tegmen 

 narrow 

 speculum 

 elongate. 



, with 

 greatlv 



Metarhoptrum new subgenus 



Group H. 

 Ovipositor ? 



Genicular lobes 

 of caudal femora 

 unispinose. 



{superbum) 

 Stridulating field 

 of male tegmen 

 narrow but of nor- 

 mal character. 



Group L {fraternum, unispina) 



Ovipositor ? 



Genicular lobes 

 of caudal femora 

 unispinose. 



Stridulating field 

 small, stridulating 

 vein vcrv weak. 



Lateral lobes with 

 humeral sinus 

 moderately indi- 

 cated, and broad 

 but shallow. 



Lateral lobes with 

 no humeral sinus. 



Lateral lobes with 

 at most only a 

 very shallow hu- 

 meral sinus. 



TRANS. AM. ENT. SOC, XLI. 



